Influence of wind direction on performance of indirect air cooled radiator in a dry cooling tower

LONG Guoqing; TANG Dongsheng; HE Hui; YANG Zhi; SHI Lei

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Influence of wind direction on performance of indirect air cooled radiator in a dry cooling tower

更新时间：2025-09-28

- Influence of wind direction on performance of indirect air cooled radiator in a dry cooling tower
- Thermal Power Generation Vol. 43, Issue 5, Pages: 83-86(2014)
- 作者机构：
  
  1. 中国能源建设集团广东省电力设计研究院
  2. 北京交通大学土建学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK172
- Published：2014
- 稿件说明：
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LONG Guoqing, TANG Dongsheng, HE Hui, et al. Influence of wind direction on performance of indirect air cooled radiator in a dry cooling tower[J]. Thermal power generation, 2014, 43(5): 83-86.
DOI：

LONG Guoqing, TANG Dongsheng, HE Hui, et al. Influence of wind direction on performance of indirect air cooled radiator in a dry cooling tower[J]. Thermal power generation, 2014, 43(5): 83-86. DOI：

摘要

采用计算传热学(NHT)软件Fluent

对某台300MW机组辅机干冷塔新型间接空冷散热器设计工况下的流动和换热性能进行了数值模拟、分析和研究。结果表明:当风机转速为100%时、90°风向下

间接空冷散热器的性能最好

达到了设计值

且45°风向时散热器换热不佳

热风回流现象是影响散热器换热性能的主要因素;当风机转速为110%时、90°风向下

间接空冷散热器的性能最好

达到了设计值

而在不同风向下其抗风能力较100%转速有所提高

热风回流的影响显著降低

22.5°为最不利风向。

Abstract

By using the numerical heat transfer(NHT)software Fluent

numerical simulation on flow and heat transfer performance of the novel indirect air cooled radiator of dry cooling tower in a 300MW unit under design condition was conducted.The results show that

with the air fan speed of 100%

the indirect air cooled radicator exhibited the best performance in air direction of 90°

and the poorest in air direction of 45°;the hot air recirculation was the main factor affecting the heat transfer performance.With the air fan speed of 110%

the indirect air cooled radicatior exhibited the best performance in air direction of 90°

and its air resistance capability increased in other air directions;the effect of hot air recirculation significantly reduced;the radiator performance was the worst in air direction of 22.5°.

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